After Peterson & Eernisse, 2001, and Adl et al., 2005

Alternative phylogeny after Zrzav & Hypša, 2003

<==o Metazoa (monisoluiset eläimet; multicellural animals)
   |?- †Archaeocyatha Vologdin, 1937 [Cyathospongia Okulitch, 1935; Pleospongia Okulitch, 1935] [enigmatic Cambrian sponges?]
   |-- Porifera Grant, 1872 [Parazoa Sollas, 1884] (sienieläimet; sponges)
   `--+-- Trichoplax adhaerens von Schultze, 1883 [Phagocytellozoa: Placozoa Grell, 1971] (laakkoeläimet)
      `--+-- Rhombozoa Krohn, 1839 sensu Parker, 1982 [Planuloidea; Moruloidea; Mesozoa van Beneden, 1877 (in partim)] sensu Conway-Morris, 1993 (harvasoluiset 1)
         |-- Orthonectida Giard, 1880 [Mesozoa van Beneden, 1877 (in partim)] (harvasoluiset 2)
         `--+?- Salinella [Monoblastozoa] (salvaeläimet)
            `--o Animalia Linnaeus, 1758, emend. Adl et al., 2005 [Eumetazoa Bütschli, 1910]
               |?- †Ventogyrus Ivantsov & Grazhdankin, 1997
               |-- Cnidaria Hatschek, 1888 [Cridaria (lapsus calami)] (polttiaiseläimet)
               `--+-- Ctenophora (kampamaneetit)
                  `-- Bilateralia (kaksikylkis-symmetriset eläimet; bilaterally symmetric animals)

Reference(s):